There will certainly be more full TF stuff as making monster girl designs for the girls is kinda fun and parts of game over reasons on why they don't exactly continue their quest for rescuing the missing maids. In terms of what they'll be turning into, I'll keep it vague for now; however, some of the more common things that come to mind are probably not too far off.
Excellent really looking forward to what you cook up. If you don’t mind a suggestion, it would be very cool to be able to play as the transformed party with the new objective of corrupting their former allies but I understand that may be quite a hassle so just do what you are comfortable with for now :)